HE Hongqing 1 , LI Ningkai 1 , LIU Meng 1 , LIN Jiating 2 , WANG Qiang 1 , ZHANG Yinchang 1
  • 1. Department of Joint and Bone Surgery, the First Affiliated Hospital of Wannan Medical College, Wuhu Anhui, 241000, P. R. China;
  • 2. Department of Stomatology, the First Affiliated Hospital of Wannan Medical College, Wuhu Anhui, 241000, P. R. China;
ZHANG Yinchang, Email: 879870162@qq.com
Inferior pole fracture of patella; double-pulley technique; suture anchor; three-dimensional binding; internal fixation
10.7507/1002-1892.202409080
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Objective  To explore the feasibility and effectiveness of suture anchor double-pulley technique combined with suture three-dimensional binding via bone tunnel technique for avulsion fractures of the inferior pole of the patella. Methods  A clinical data of 38 patients with avulsion fractures of the inferior pole of the patella, who met the selective criteria and were admitted between September 2021 and April 2023, was retrospectively analyzed. The fractures were treated with suture anchor double-pulley technique combined with suture three-dimensional binding via bone tunnel technique in 18 cases (group A) and steel wire tension-band fixation in 20 cases (group B). There was no significant difference in terms of age, gender, cause of fracture, side of fracture, and disease duration between the two groups (P>0.05). The length of incision, operation time, occurrence of complications, the range of motion of knee joint, and B?stman score of knee joint at last follow-up were recorded. The fracture healing was evaluated through X-ray films and the time of fracture healing was recorded. Results  All incisions healed by first intention. The length of incision was significantly shorter in group A than in group B (P<0.05). There was no significant difference in the operation time between the two groups (P>0.05). All patients were followed up 12-24 months (mean, 16.1 months). X-ray films showed that all fractures healed and there was no significant difference in the healing time between the two groups (P>0.05). At last follow-up, the range of motion and B?stman score of the knee joint in group A were significantly better than those in group B (P<0.05). During follow-up, 1 patient (5.6%) in group A had one anchor mild prolapse and 3 patients (15.0%) occured internal fixation irritation in group B. But there was no significant difference in the incidence of complications between the two groups (P>0.05). Conclusion  For the avulsion fractures of the inferior pole of the patella, the suture anchor double-pulley technique combined with suture three-dimensional binding via bone tunnel technique has advantages of reliable fixation, small incision, avoidance of secondary operation to remove internal fixator, and fewer complications, with definite effectiveness.

Citation： HE Hongqing, LI Ningkai, LIU Meng, LIN Jiating, WANG Qiang, ZHANG Yinchang. Three-dimensional binding treatment for avulsion fractures of inferior pole of patella utilizing suture anchor. Chinese Journal of Reparative and Reconstructive Surgery, 2025, 39(1): 26-31. doi: 10.7507/1002-1892.202409080 Copy

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